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Finding the Fourth Proportional to 481,575.76, 721,699.28 and 363,116.88

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Solution

The fourth proportional to 481,575.76, 721,699.28 and 363,116.88 is: 544,174.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    481,575.76 : 721,699.28 = 363,116.88 : x
  2. Step 2: Convert to fraction form
    481,575.76/721,699.28 = 363,116.88/x
  3. Step 3: Cross multiply
    481,575.76x = 721,699.28 × 363,116.88
  4. Step 4: Simplify right side
    481,575.76x = 262,061,190,851.85
  5. Step 5: Solve for x
    x = 262,061,190,851.85/481,575.76
  6. Step 6: Final answer
    x = 544,174.38

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.